Selected MCQ

Current Question
In a certain code, each letter is shifted one step forward and then the whole word is reversed. If BIRD is coded as ESJC, then LION is coded as:
  • A. NQKO
  • B. OPJM
  • C. OPKM
  • D. PJOM
Correct Answer: B
Explanation:
LION → MJPO after shifting, and reversing gives OPJM.
Related Question 1
In a code, letters in odd positions are shifted one step forward and letters in even positions are shifted one step backward. If NOTE is coded as ONUD, then COLD is coded as:
  • A. DNMC
  • B. DOLD
  • C. CPKE
  • D. BNLE
Correct Answer: A
Explanation:
C→D, O→N, L→M, D→C by the alternating rule.
Related Question 2
In a certain code, the letters of a word are arranged in alphabetical order. If KNIFE is coded as EFIKN, then SPOON is coded as:
  • A. NOPOS
  • B. NOOPS
  • C. OONPS
  • D. OOPNS
Correct Answer: B
Explanation:
Sorting the letters of SPOON alphabetically gives N, O, O, P, S.
Related Question 3
In a certain code, the letters of a word are arranged in alphabetical order. If GREEN is coded as EEGNR, then BROWN is coded as:
  • A. BORNW
  • B. BNORW
  • C. BNROW
  • D. BONRW
Correct Answer: B
Explanation:
Sorting the letters of BROWN alphabetically gives B, N, O, R, W.
Related Question 4
In a certain code, the first letter is moved to the end. If ROAD is coded as OADR, then LANE is coded as:
  • A. ANEL
  • B. NELA
  • C. AENL
  • D. ELAN
Correct Answer: A
Explanation:
Moving the first letter to the end changes LANE to ANEL.
Related Question 5
In a code, each consonant is replaced by the previous letter and each vowel by the next letter. If TRAIN is coded as SQBJM, then PLANE is coded as:
  • A. OLBMF
  • B. PKBMF
  • C. OKBMF
  • D. QMBOF
Correct Answer: C
Explanation:
P→O, L→K, A→B, N→M, E→F by the given rule.